RF 85mm 1.2 - Focusing Speed

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Blownvette
Blownvette Regular Member • Posts: 313
RF 85mm 1.2 - Focusing Speed
1

I have done numerous Google Searching and I cannot find any that gives me the answer I'm looking for.  I have had a few versions of the 85mm lens as I use it quite often important lens for me.  The previous versions I have owned were Canon 85 1.8, the original Sigma 85 1.4, the Sigma 85 1.4 ART and right now I have the Canon 85 1.4L IS.

I recently bought the new R5 and it is a wonderful camera...especially the AF system which seems to nail focus on all of my lenses.  (so using the Canon 85 1.4L with the EF-RF converter)

So my question is this.  Many of my portraits are of Athletes/Dancers and they are moving quite abit...and I also shoot for a drag racing magazine and the cars are coming at extreme rates of speed so a fast AF is a must.  I have NO complaints with the current Canon EF 85mm (so this may be a bit of a potential emotional purchase) that said how fast does the new RF 85mm 1.2 focus in comparison to the current EF 85mm 1.4?  I know it is moving more glass so typically the lager the aperture the slower the lens will focus.  .

All of that said, does anyone know how FAST the AF speed is compared to other Canon EF lenses.  Thanks.  Below are a few samples of what I have shot with the 85mm on either a Canon 5DIV or a the new R5.

Canon EOS R5
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MikeB_2018 Contributing Member • Posts: 500
Re: RF 85mm 1.2 - Focusing Speed

I can't say how the RF 85 is vs. the EF 1.4 version, but it is substantially faster than my EF 85/1.2.

That being said, it is slower than my RF 50 as it is a really massive lens with a lot of glass.  My guess it will be incrementally faster than your EF 85/1.4.  Probably not enough to justify changing.

Just my .02 cents.

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gavin
gavin Veteran Member • Posts: 7,887
Re: RF 85mm 1.2 - Focusing Speed

Nice. It should be fast but thats my speculation. If you are so worried rent it for a few days and see.

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GreatWhiteWing Senior Member • Posts: 1,352
Re: RF 85mm 1.2 - Focusing Speed

Blownvette wrote:

I have done numerous Google Searching and I cannot find any that gives me the answer I'm looking for. I have had a few versions of the 85mm lens as I use it quite often important lens for me. The previous versions I have owned were Canon 85 1.8, the original Sigma 85 1.4, the Sigma 85 1.4 ART and right now I have the Canon 85 1.4L IS.

I recently bought the new R5 and it is a wonderful camera...especially the AF system which seems to nail focus on all of my lenses. (so using the Canon 85 1.4L with the EF-RF converter)

So my question is this. Many of my portraits are of Athletes/Dancers and they are moving quite abit...and I also shoot for a drag racing magazine and the cars are coming at extreme rates of speed so a fast AF is a must. I have NO complaints with the current Canon EF 85mm (so this may be a bit of a potential emotional purchase) that said how fast does the new RF 85mm 1.2 focus in comparison to the current EF 85mm 1.4? I know it is moving more glass so typically the lager the aperture the slower the lens will focus. .

All of that said, does anyone know how FAST the AF speed is compared to other Canon EF lenses. Thanks. Below are a few samples of what I have shot with the 85mm on either a Canon 5DIV or a the new R5.

Might also ask in the R forum. Wish I could help more than that

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Croomrider Regular Member • Posts: 478
Re: RF 85mm 1.2 - Focusing Speed
2

Can't help you with the focus speed, but the exif in your photos only shows one of the three shot with the 85mm. Nice photos though!

Blownvette
OP Blownvette Regular Member • Posts: 313
Re: RF 85mm 1.2 - Focusing Speed
1

Croomrider wrote:

Can't help you with the focus speed, but the exif in your photos only shows one of the three shot with the 85mm. Nice photos though!

Those were more of a quick sample of what I typically shoot...I would usually use my 85mm for those shots so I should have checked prior.  Here are a few that I know I used my 85mm on:

1Dx4me Forum Pro • Posts: 10,450
Re: RF 85mm 1.2 - Focusing Speed

nice photos!

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Steve Balcombe Forum Pro • Posts: 14,265
Re: RF 85mm 1.2 - Focusing Speed

I have no idea, just wanted to say the pictures are *awesome*!

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